Apparatus for treating old paper and the like.



v A. LANNOYE. APPARATUS FOR TREATlNG OLD PAPER AND THE LIKE.

APPLICATION TILED JULY 14, 1908. I

989,370. 1 Patented Apr. 11, 1911.

2 SHEETS-SHEET 1.

W 21 22635 65 2 )%,/6 WM 3 j I A. .LANNOYE. A APPARATUS FOR TREATING OLD PAPER AND THE LIKE.

APPLICATION FILED JULY 14, 1908.

989,370, I Patented Apr. 11, 1911.

2 SHEBTSSHEET 2.

UNITED .sT Es PATENT o FF CE.

AUeUsTr. LAmToYE, 0F GENVAL, BELGIUM.

APPARATUS ron TREATING oLn- PAPER Ann THE LIKE.

Specification 61 Letters Patent.

Patented Apr. 11, 1911.

Application filed July 14,1908. Serial No. 443,559.

To all whom it my consent;

Be it known that I, AUoUsTE LANNOYE, a subject of Belgium, residing at Genval, in the King domof Belgium, have invented new and use 1 Improvements in Apparatus'for Treating Old Paper and the Like, of which the following is a specification.

For the treatment of old paper, and the like, with the view to its again being utilized in paper making, apparatus have already been designed comprising cylindrical or conical vats in which rotates a horizontal shaft carrying arms or blades to'work up the material and effect its continuous movement forward in the apparatus. In such apparatus however it has only been the object toeffect terial without attaining a suflicient saturation of water.

The present invention has for its object to provide an a paratus in which a receptacle or cylindrica vat is used containing a horizontal shaft carrying working members but the action of which is based upona method of working absolutely different from that of the abovementioned apparatus.

I have found that to obtain, with a minimum of energy and under economical working conditions, a complete and rapid disso lution of old papers, card board and the like it is not necessary to submit these materials to an energetic, process of subdivision; the dissolution is on the contrary obtained much more erfectly by steeping the material for a suflibiently long perio subjecting the same to heat, and completing the operation by stirring up the mass and subjecting the same to a certain compression. In regard therefore to the'method of working, the apparatus forming the object of the present invention approaches more nearly to the old pulping or dissolving apparatus known under the name of Barbottes than to the tearing or grinding apparatus above mentioned.

I make use of an apparatus which will be hereinafter fully descrlbed.

Figure 1 is a side view of the apparatus with the steeping chamber and a part of the compression chamber shown in section. Fig.

'2 is a separate view of one of the agitators situated in the steeping chamber. Fig. 3 is an edge view of the a itator Fig. 2 showing front View of the wheels situatedin the compressing apparatus. Fig. 5 is a partial transverse section of the compression chamber showing the parts which coiiperate with the wheels situated in the compression cham ber to facilitate the working up of the material under treatment.

As shown by Fig. 1 the apparatus as a whole comprises a horizontal cylinder a which forms the steeping chamber and into which the material is introduced through a hopper b; the cylinder a is traversed by a shaft 0 which extends into a cylindrical receptacle d of a smaller diameter than the cylinder 0: and connected thereto in axial alinement therewith.

The shaft 0 carries, inside the steeping chamber a, agitators e suitably spaced apart to permit the material to fall freely to the bottom of the cylinder 0;. These agitators eare each formed (Fig. 2) of a wheel with six arms f. In the example shown in Fig. 1 use is made of three similar wheels and each of them is displaced one twelfth of its circumference with respect to the one in front and the one following.

The shaft '0 which is provided outside the steeping chamber a with a driving pulley g and loose pulley 9 carries in the opening h formin the communication between the cylindrloal chamber a with the cylindrical receptacle d, a screw 2' projecting about half way into the steeping chamber a and into the cylinder (Z. In the latter the shaft '0 carries wheels with blades j displaced, with respect one tothe other, by one-twelfth of the circumference and the face of each of which aims forms a helicoidal plane of suitable pitch.

Between the arms of two consecutive v in section the shape of the arms. Fig. 4; is a v wheels 7' a steel rod 7: is solidly bolted to the casing of the cylinder (1, and to the extremity of the cylinder 03, which contains a suitable number of these wheels j (ten for example) is bolted an endplate Z provided at the lower.

part with an opening m closed by a door 01 opening outward under the pressure of'the pulp. This door is kept closed by a lever 0 carrying a counter-weight p suitably regulated so asto only allow the opening of the door 11. when a redetermined pressure is reached in the cylmder d.

In the upper part of the cylinder (1 are, ar-

' arranged one or two small air tubes q for the 1 purpose of allowing the escape of air which might collect in the apparatus and thus prevent perfect contact between all the fibers.

The action of the apparatus is as follows:

i The material introduced into the cylinder of operation; during this operation any heavy and hard impurities which might accoma water flows into the cylinder d being forced pany the material to be treated are collected in a false bottom 8 provided at the lower part of the cylinder a. .The arms of the agitators e bein curved and somewhat conical strings and pleces of rag are easily detached. When the steeping chamber a is sufliciently full of paper the latter, with the steeping thereinto by the screw i. The pressure in the cylinder 03 is the resultant of the friction which the mass has to overcome in the whole of its travel and of the pressure produced by the door n, a pressure which can be adjusted as desired according to the result which it is required to obtain. The screw 71 on the one hand and the agitators 7' on the other hand, produce the forward movement and induce a rotating and mixing movement of the pulp which is retarded by the rods 70. As soon as the apparatus is filled and at the desired pressure the door n is automatically raised and allows the perfectly triturated material to pass out.

Owing to the arrangement described the material, contrary to what is the case with apparatus at present employed, is submitted to as complete a saturation as possible; this saturation is effected with the expenditure of a minimum amount of energy due to the relatively high temperature of the water contained in the steepin chamber a which temperature is regulate by the steam jet above mentioned; the division of the material treated is already very complete in the steeping chamber a, in consequence of the combined action of the agitators e, of the high temperature, and of the time spent on the operation owing to the slow speed of rotation of the shaft 0.

The compression produced in the cylindri- I cal casing (Z separates the fibers one from the-other and completes the dissociation of these fibers by the pulling action in reverse directions exerted thereon by the cooperation of the wheels or agitators j and the projecting rods k. The rapid and complete dissolution of old papers, cardboard, etc., is consequently effected without submitting these materials to subdividing or grinding action'by means of parts rotating at a particularly high speed and absorbing considerable energy. I;

Having thus described myinvention,what I claim is:

1. In an apparatus of the class de sjcribed,

a steeping chamber, agitating mechanism therein, a pulping chamber connected. with the steepingchamber for receiving material therefrom and means whereby material may be compressed in the pulping chamber.

2. In an apparatus of the class described, a steeping chamber, a ulping chamber connecting therewith, an means cooperating with said pulping chamber whereby the material being treated therein may be subjected to any suitable degree of compression.

3. In an apparatus of the class described, a pulping chamber, an outlet therefrom, agitating and feeding mechanism operating with said chamber, means for normally closing said outlet, and a device coiiperating with said closing means whereby the outlet is opened when the compression of the material reaches a certain predetermined degree.

4. In an apparatusoi the class described, a pulping chamber provided with an outlet, agitating and feedlng mechanisms within said chamber, a door normally closing said outlet, and adjustable mechanism cooperating with said door whereby the outlet remains closed until a predetermined degree gf pressure is attained in the pulping chamer. 5. In an apparatus of the class described, a steeping chamber, a pulping chamber communicating therewith, an outlet from the pulping chamber, means within the steeping chamber for a itating the material therein, means for fee in and agitating the mate rial within the pn ping chamber, and mechanism cooperating with the feeding and agitating mechanism for regulating the compresslon of the material under treatment in said chamber.

6. In an apparatus of the class described, a steeping chamber, a pulping chamber communicating therewith, an outlet from the pulping chamber, means within the steeping .chamber for agitating the material therein, agitating means positioned within the pulping chamber, feed mechanism cooperating with the steeping chamber and the In testimony whereof I have signed my pulping chamber, an outlet from the pulpname to this specification in the presence of ing chamber, a door for normally closing two subscribing witnesses.

the outlet, and means for retaining the door AUG. LANNOYE. in a closed position until a predetermined Witnesses: degree of pressure is attained in the pulp- GEORGE BEDE,

ing chamber. Gr. PHELAN. 

